Generating and rating user assessments

ABSTRACT

A method, a computer program product, and a computer system for generating and rating assessments is disclosed. Exemplary embodiments include gathering data relating to one or more specialized subject areas and generating a knowledge base based on extracting one or more concepts from the data. Exemplary embodiments further include generating one or more questions and one or more corresponding answer keys relating to the one or more concepts, as well as generating an assessment related to the one or more concepts based on the one or more questions and one or more answer keys.

BACKGROUND

The exemplary embodiments relate generally to user assessments, and moreparticularly to dynamically and adaptively generating and rating userassessments.

Static user assessment systems have the disadvantage of being out-datedfor subject areas like science, technology, artificial intelligence,molecular biology, bio-informatics, current political events, etc.,where the rate of change of information and required human understandingare both very high.

SUMMARY

Exemplary embodiments include gathering data relating to one or morespecialized subject areas and generating a knowledge base based onextracting one or more concepts from the data. Exemplary embodimentsfurther include generating one or more questions and one or morecorresponding answer keys relating to the one or more concepts, as wellas generating an assessment related to the one or more concepts based onthe one or more questions and one or more answer keys.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The following detailed description, given by way of example and notintended to limit the exemplary embodiments solely thereto, will best beappreciated in conjunction with the accompanying drawings, in which:

FIG. 1 depicts an exemplary schematic diagram of an assessmentgenerating system 100, in accordance with the exemplary embodiments.

FIG. 2 depicts an exemplary flowchart 200 illustrating the operations ofan assessment generator 132 of the assessment generating system 100 ingenerating user assessments, in accordance with the exemplaryembodiments.

FIG. 3 depicts an exemplary block diagram depicting the hardwarecomponents of the assessment generating system 100 of FIG. 1 , inaccordance with the exemplary embodiments.

FIG. 4 depicts a cloud computing environment, in accordance with theexemplary embodiments.

FIG. 5 depicts abstraction model layers, in accordance with theexemplary embodiments.

The drawings are not necessarily to scale. The drawings are merelyschematic representations, not intended to portray specific parametersof the exemplary embodiments. The drawings are intended to depict onlytypical exemplary embodiments. In the drawings, like numberingrepresents like elements.

DETAILED DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

Detailed embodiments of the claimed structures and methods are disclosedherein; however, it can be understood that the disclosed embodiments aremerely illustrative of the claimed structures and methods that may beembodied in various forms. The exemplary embodiments are onlyillustrative and may, however, be embodied in many different forms andshould not be construed as limited to the exemplary embodiments setforth herein. Rather, these exemplary embodiments are provided so thatthis disclosure will be thorough and complete, and will fully convey thescope to be covered by the exemplary embodiments to those skilled in theart. In the description, details of well-known features and techniquesmay be omitted to avoid unnecessarily obscuring the presentedembodiments.

References in the specification to “one embodiment”, “an embodiment”,“an exemplary embodiment”, etc., indicate that the embodiment describedmay include a particular feature, structure, or characteristic, butevery embodiment may not necessarily include the particular feature,structure, or characteristic. Moreover, such phrases are not necessarilyreferring to the same embodiment. Further, when a particular feature,structure, or characteristic is described in connection with anembodiment, it is submitted that it is within the knowledge of oneskilled in the art to implement such feature, structure, orcharacteristic in connection with other embodiments whether or notexplicitly described.

In the interest of not obscuring the presentation of the exemplaryembodiments, in the following detailed description, some processingsteps or operations that are known in the art may have been combinedtogether for presentation and for illustration purposes and in someinstances may have not been described in detail. In other instances,some processing steps or operations that are known in the art may not bedescribed at all. It should be understood that the following descriptionis focused on the distinctive features or elements according to thevarious exemplary embodiments.

Static user assessment systems have the disadvantage of being out-datedfor subject areas like science, technology, artificial intelligence,molecular biology, bio-informatics, current political events, etc.,where the rate of change of information and required human understandingare both very high. Such user assessment systems have questions that arecreated manually by subject matter experts and there tends to be a leadtime of days to create assessments. Moreover, the assessments ofcandidates are not accurate because the static assessments do notinclude questions and content based on the most recent information.

Accordingly, there is a need for a system to continuously compileknowledge and generate up-to-date user assessments. Such userassessments may be implemented to, for example, recognise priorlearning, certify current competencies/licenses, identify trainingneeds, track training/qualification progress, determinelanguage/literacy/numeracy needs, recognise training gaps, measure workperformance, classify employees, support career progression, meetorganisational requirements for work, operate equipment, etc.

The motivation for exemplary embodiments disclosed herein is to removethe disadvantage of static and out-dated assessments by having acognitive system automatically crawl, read, and parse large volumes ofdata on a given subject; then identify concepts related to the subjectand create user assessments (questions and keys) targeted to variouslevels of candidate (or test taker) expertise. For example, for thesubject computer networking, exemplary embodiments create assessmentsfor a high-school student, a graduate, a working professional, or asubject matter expert.

Exemplary embodiments disclose a means for dynamically and adaptivelygenerating and rating assessments. Highlights of the exemplaryembodiments include increased assessment accuracy, increased assessmentrelevance, increased assessment effectiveness, and increased assessmentefficiency. Exemplary embodiments improve on existing solutions byadaptively and dynamically generating new assessments, thereby producingmore accurate and more up-to-date assessments, as will be described ingreater detail herein.

FIG. 1 depicts the assessment generating system 100, in accordance withexemplary embodiments. According to the exemplary embodiments, theassessment generating system 100 may include a smart device 120 and anassessment generating server 130, which may be interconnected via anetwork 108. While programming and data of the exemplary embodiments maybe stored and accessed remotely across several servers via the network108, programming and data of the exemplary embodiments may alternativelyor additionally be stored locally on as few as one physical computingdevice or amongst other computing devices than those depicted. Forexample, in embodiments, the assessment generator 132 and necessarycomponents may be entirely stored on the smart device 110 for uselocally without the need to connect to the network 108. The operationsof the assessment generating system 100 are described in greater detailherein.

In the exemplary embodiments, the network 108 may be a communicationchannel capable of transferring data between connected devices. In theexemplary embodiments, the network 108 may be the Internet, representinga worldwide collection of networks and gateways to supportcommunications between devices connected to the Internet. Moreover, thenetwork 108 may utilize various types of connections such as wired,wireless, fiber optic, etc. which may be implemented as an intranetnetwork, a local area network (LAN), a wide area network (WAN), or acombination thereof. In further embodiments, the network 108 may be aBluetooth network, a Wi-Fi network, or a combination thereof. Thenetwork 108 may operate in frequencies including 2.4 gHz and 5 gHzinternet, near-field communication, Z-Wave, Zigbee, etc. In yet furtherembodiments, the network 108 may be a telecommunications network used tofacilitate telephone calls between two or more parties comprising alandline network, a wireless network, a closed network, a satellitenetwork, or a combination thereof. In general, the network 108 mayrepresent any combination of connections and protocols that will supportcommunications between connected devices.

In exemplary embodiments, the smart device 120 includes an assessmentgenerating client 122, and may be an enterprise server, a laptopcomputer, a notebook, a tablet computer, a netbook computer, a personalcomputer (PC), a desktop computer, a server, a personal digitalassistant (PDA), a rotary phone, a touchtone phone, a smart phone, amobile phone, a virtual device, a thin client, an IoT device, or anyother electronic device or computing system capable of receiving andsending data to and from other computing devices. While the smart device120 is shown as a single device, in other embodiments, the smart device120 may be comprised of a cluster or plurality of computing devices, ina modular manner, etc., working together or working independently. Thesmart device 120 is described in greater detail as a hardwareimplementation with reference to FIG. 3 , as part of a cloudimplementation with reference to FIG. 4 , and/or as utilizing functionalabstraction layers for processing with reference to FIG. 5 .

The assessment generating client 122 may act as a client in aclient-server relationship, and may be a software and/or hardwareapplication capable of communicating with and providing a user interfacefor a user to interact with a server and other computing devices via thenetwork 108. Moreover, in the example embodiment, the assessmentgenerating client 122 may be capable of transferring data from the smartdevice 120 to and from other devices via the network 108. Inembodiments, the assessment generating client 122 may utilize variouswired and wireless connection protocols for data transmission andexchange, including Bluetooth, 2.4 gHz and 5 gHz internet, near-fieldcommunication, Z-Wave, Zigbee, etc. The assessment generating client 122is described in greater detail with respect to FIG. 2-5 .

In the exemplary embodiments, the assessment generating server 130 mayinclude an assessment generator 132, and may act as a server in aclient-server relationship with the assessment generating client 122.The assessment generating server 130 may be an enterprise server, alaptop computer, a notebook, a tablet computer, a netbook computer, aPC, a desktop computer, a server, a PDA, a rotary phone, a touchtonephone, a smart phone, a mobile phone, a virtual device, a thin client,an IoT device, or any other electronic device or computing systemcapable of receiving and sending data to and from other computingdevices. While the assessment generation server 130 is shown as a singledevice, in other embodiments, the assessment generation server 130 maybe comprised of a cluster or plurality of computing devices, workingtogether or working independently. The assessment generation server 130is described in greater detail as a hardware implementation withreference to FIG. 3 , as part of a cloud implementation with referenceto FIG. 4 , and/or as utilizing functional abstraction layers forprocessing with reference to FIG. 5 .

In the exemplary embodiments, the assessment generator 132 may be asoftware and/or hardware program that may be capable of gathering dataand extracting concepts from the gathered data to generate a knowledgebase. In addition, the assessment generator 132 may be capable ofgenerating questions and answers relating to the concepts of theknowledge base, and further determining a complexity of and mapping thequestions to a concept expertise level. The assessment generator 132 maybe further capable of generating an assessment, assessing a candidate,and adjusting the assessment. The assessment generator 132 is describedin greater detail with reference to FIG. 2 .

FIG. 2 depicts an exemplary flowchart 200 illustrating the operations ofan assessment generator 132 of the assessment generating system 100 ingenerating user assessments, in accordance with the exemplaryembodiments.

The assessment generator 132 may gather data (step 202). In embodiments,the assessment generator 132 may gather data by crawling variousmultilingual sources relating to one or more specialized subject areas,such as management, computer science, microbiology, engineering, arts,humanities, environmental sciences, history, geography, etc. Theassessment generator 132 may crawl the data sources using techniquessuch as selective crawling, in which data may be gathered based on oneor more criteria and ranked with a relevance score based on a relevanceto the one or more criteria. The assessment generator 132 may rank thedata sources based on metrics such as depth (i.e., length of the pathfrom the data source to the data, a total number of levels retrievedfrom the data source, etc.), popularity, number of backlinks, etc. Inaddition to the implementing selective crawling, the assessmentgenerator 132 may further crawl the data using techniques such asfocused crawling (i.e., topic crawling), in which only data sourceswithin a certain topic are crawled. Similarly, the assessment generator132 may implement incremental crawling, in which prioritized andpreviously visited data sources are periodically refreshed. Moreover,the assessment generator 132 may implement distributed crawling,parallel crawling, web dynamics, etc. In general, the assessmentgenerator 132 may utilize any suitable crawling and ranking system forgathering data, and may consider factors such as scalability,transparency, reliability, anti-crawler mechanisms data delivery,support, data quality, etc. The assessment generator 132 may gather thedata from input sources such as websites, scientific journals, researchpapers, textbooks, blogs, notes, wikis, documents, news sources, videos,images, audio, recordings of lectures, etc. Moreover, the assessmentgenerator 132 may be configured to aggregate, fragment, and re-frame thegathered data conceptually using data mining and deep machine learningtechniques on the structured and unstructured data.

To further illustrate the operations of the assessment generator 132,reference is now made to an illustrative example in which the assessmentgenerator 132 gathers information from one or more text books, one ormore websites, one or more scientific journals, one or more wikis, oneor more lectures, and one or more news sources.

The assessment generator 132 may extract concepts from the gathered datain order to generate a knowledge base (step 204). In embodiments, theassessment generator 132 may identify concepts within the data by firstprocessing the data, which may include parsing, indexing, cataloguing,and classifying the data using neural networks, deep learningtechniques, natural language processing and understanding, naturallanguage classification, automated translations, transcription, andother algorithms. The assessment generator 132 may then classify and tagconcepts, facts, ideas, terms, events, subjects, etc., collectivelyreferred to as “concepts” herein, within the processed data usingalgorithms and machine learning techniques. In embodiments, theassessment generator 132 may classify the concepts found within the datausing techniques such as topic modelling, Naïve Bayes, Gaussian NaïveBayes, multinomial Naïve Bayes, support-vector machine (SVM), etc.Moreover, the assessment generator 132 may rank the classificationsusing techniques such as named entity extraction, natural languageprocessing, advanced natural language processing, etc. The assessmentgenerator 132 may further implement a concept enrichment process inwhich the assessment generator 132 may merge, associate, aggregate,index, and rank the concepts in a network and hierarchical data store,herein known as a “knowledge base”. In embodiments, data models storedin the knowledge base may be curated, enhanced, corrected, catalogued,etc., using supervised (e.g., human intervention) and/or unsupervised(e.g., machine learning) validation methods that may improve, correct,or validate the knowledge base. Importantly, the assessment generator132 may be further configured to periodically update the knowledge basebased on crawling both known and new data sources, thereby maintainingmost up to date concept data. In such embodiments, data within theknowledge base may be modified, removed, added, etc. based on the newdata, and deciding between conflicting data may be determined based ondata source, data source confidence, data source reliability, number ofdata sources (consensus), etc. For example, data within the knowledgebase may only be modified if a majority of data sources support themodification. Alternatively, or in addition, the assessment generator132 may modify data within the knowledge base based on a single sourceif the single source is reliable enough, etc.

In furthering the previously introduced example for illustrationpurposes, the assessment generator 132 may identify the concept ofmathematics from the gathered data.

The assessment generator 132 may generate questions and answers keys forthe concepts within the knowledge base (step 206). In embodiments, theassessment generator 132 may generate questions relating to conceptsidentified within the knowledge base using the gathered, processed, andenriched data by first parsing the data and then forming questions basedon the parsed data. Techniques for parsing the data may include using aphase structure grammar parser, semantic role label parser, a dependencyparser, etc., while techniques for forming questions include templatematching, transformational rules, tree manipulation tools, syntactictools, semantic tools, etc. In addition, the assessment generator 132may further generate answer keys to the generated questions, or keys, ina similar manner, and may further validate and rank the generated keysfor accuracy based on synthesizing data points and other conceptsavailable in the knowledge base. In embodiments, the assessmentgenerator 132 may validate and rank the gather data using techniquessuch as text summarization. Text summarization is the process ofgenerating a concise and meaningful summary of text from multiple textresources, such as the data sources identified above. The assessmentgenerator 132 may summarize text in an extractive manner, in which thesummary comprises parts of the data such as phrases and sentences, or anabstractive manner, in which advanced NLP techniques are used togenerate a custom summary. Moreover, the assessment generator 132 mayrank the generated questions based on a similarity score that identifiescommonalities between the data sources. In embodiments, the assessmentgenerator 132 may compute the similarity score by generating vectorrepresentations of the sentences within the data sources and storingsimilarities between the sentence vectors in a similarity matrix. Theassessment generator 132 may then convert the similarity matrix into agraph having sentences as vertices and similarity scores as edges forsentence rank calculation, the top-ranked sentences then form the one ormore questions. In embodiments, the assessment generator 132 maygenerate answer keys to the generated questions using a similartechnique.

Continuing the illustrative example earlier introduced, the assessmentgenerator 132 generates questions involving addition, subtraction,multiplication, division, and square roots relating to the conceptmathematics, as well as respective answer keys.

The assessment generator 132 may determine a complexity of and map thequestions to a concept expertise level (step 208). In embodiments, theassessment generator 132 may determine a complexity of a question inorder to associate the question with a particular concept expertiselevel, and may do so using various techniques and based on variousfactors. For example, the assessment generator 132 may determine acomplexity based on qualitative dimensions of text complexity, such asmeaning/purpose, structure, language conventionality and clarity,knowledge demand, etc. In addition, the assessment generator 132 maydetermine a complexity based on quantitative dimensions of textcomplexity, such world length and frequency, sentence length, textcohesion, etc. Moreover, the assessment generator 132 may determine acomplexity based on reader and task considerations, includingmotivation, knowledge, experience, etc. Concept expertise levels mayvary based on concept, however may commonly include beginner levels suchas novice, apprentice, basic, foundational, essential, etc.,intermediate levels such as advanced beginner, competent, journeyman,etc., as well as advanced levels such as proficient, expert, master,professional, etc. Moreover, the assessment generator 132 may mapconcept expertise levels based on other factors with regard to aparticular concept, such as recency, importance, relevancy, complexity,knowledge demand, familiarity of topic, popularity, etc.

With reference to the illustrative example introduced above, theassessment generator 132 associates the questions relating to additionand subtraction with the concept expertise level of beginner, thequestions relating to multiplication and division with the conceptexpertise level of advanced beginner, and the questions relating tosquare roots with the concept expertise level of intermediate.

The assessment generator 132 may generate an assessment (step 210). Inembodiments, the assessment generator 132 may generate an assessment forany of the various concept expertise levels relating to the specializedsubject areas, and may include one or more of the generated questionsand one or more corresponding answer keys relating to a particularconcept and concept expertise level. In embodiments, one or moreassessments may be generated and may be generated once, at periodicintervals, in response to new gathered data, in response to a userrequest to take an assessment, etc.

In furthering the example introduced above, the assessment generator 132may generate an assessment for beginner level users that includesaddition and subtraction questions, an assessment for advanced beginnerlevel users that includes multiplication and division questions, and anassessment for intermediate level users that includes square rootquestions.

The assessment generator 132 may assess a user (step 212). Inembodiments, the assessment generator 132 may provide the generatedassessment to a user via the assessment generating client 122 and thenetwork 108. Moreover, the assessment generator 132 may be configured toreceive or determine an expertise level of the user and provide anassessment matching the determined expertise level of the user. Thequestions of the assessment may be in the form of yes/no, true/false,multiple choice, open ended, etc., and the assessment generator 132 mayprovide the user a means for answering the questions that may comprise aradio button, toggle switch, drop-down menu, check-box, etc. Inembodiments, and based on factors such as the determined complexity ofthe question, context/requirement of the assessment, concept, userpreferences, etc., the assessment generator 132 may be configured toprovide the user a text box to input answers to open-ended assessmentquestions. The assessment generator 132 may then assess the performanceof a user based on comparing one or more received answers with the oneor more generated and ranked answer keys to the questions. Inembodiments, comparing the candidate answers to the keys may beperformed by simple comparison, such as comparing multiple choiceselections to an answer key, or may require machine learning techniques,such as comparing an open ended candidate answer to a key using naturallanguage processing techniques. In embodiments, the assessment generator132 may forward candidate answers to an administrator or proctor forassessment and receive the results. After assessing the user, theassessment generator 132 may provide an assessment score, or grade,indicative of a capability of the user as it relates to a particularconcept and concept expertise level.

With continued reference to the example above, and based on providing anassessment to a beginner level user, the assessment generator 132receives answers to questions relating to addition and subtraction fromthe user, then assesses the user for an assessment score of 92/100.

The assessment generator 132 may adjust the assessment (step 214). Inembodiments, the assessment generator 132 may adjust the assessment tovary weights or eliminate errors based on various factors, such as asupervisory validation of the assessment score via human intervention ormachine learning techniques, human intervention by proctors or subjectmatter experts, etc.

Concluding the previously introduced example, the assessment generated132 receives supervisory validation indicating that the key to aquestion is incorrect, and receives the correct key via humanintervention.

FIG. 3 depicts a block diagram of devices within the assessmentgenerating system 100 of FIG. 1 , in accordance with the exemplaryembodiments. It should be appreciated that FIG. 3 provides only anillustration of one implementation and does not imply any limitationswith regard to the environments in which different embodiments may beimplemented. Many modifications to the depicted environment may be made.

Devices used herein may include one or more processors 02, one or morecomputer-readable RAMs 04, one or more computer-readable ROMs 06, one ormore computer readable storage media 08, device drivers 12, read/writedrive or interface 14, network adapter or interface 16, allinterconnected over a communications fabric 18. Communications fabric 18may be implemented with any architecture designed for passing dataand/or control information between processors (such as microprocessors,communications and network processors, etc.), system memory, peripheraldevices, and any other hardware components within a system.

One or more operating systems 10, and one or more application programs11 are stored on one or more of the computer readable storage media 08for execution by one or more of the processors 02 via one or more of therespective RAMs 04 (which typically include cache memory). In theillustrated embodiment, each of the computer readable storage media 08may be a magnetic disk storage device of an internal hard drive, CD-ROM,DVD, memory stick, magnetic tape, magnetic disk, optical disk, asemiconductor storage device such as RAM, ROM, EPROM, flash memory orany other computer-readable tangible storage device that can store acomputer program and digital information.

Devices used herein may also include a R/W drive or interface 14 to readfrom and write to one or more portable computer readable storage media26. Application programs 11 on said devices may be stored on one or moreof the portable computer readable storage media 26, read via therespective R/W drive or interface 14 and loaded into the respectivecomputer readable storage media 08.

Devices used herein may also include a network adapter or interface 16,such as a TCP/IP adapter card or wireless communication adapter (such asa 4G wireless communication adapter using OFDMA technology). Applicationprograms 11 on said computing devices may be downloaded to the computingdevice from an external computer or external storage device via anetwork (for example, the Internet, a local area network or other widearea network or wireless network) and network adapter or interface 16.From the network adapter or interface 16, the programs may be loadedonto computer readable storage media 08. The network may comprise copperwires, optical fibers, wireless transmission, routers, firewalls,switches, gateway computers and/or edge servers.

Devices used herein may also include a display screen 20, a keyboard orkeypad 22, and a computer mouse or touchpad 24. Device drivers 12interface to display screen 20 for imaging, to keyboard or keypad 22, tocomputer mouse or touchpad 24, and/or to display screen 20 for pressuresensing of alphanumeric character entry and user selections. The devicedrivers 12, RAY drive or interface 14 and network adapter or interface16 may comprise hardware and software (stored on computer readablestorage media 08 and/or ROM 06).

The programs described herein are identified based upon the applicationfor which they are implemented in a specific one of the exemplaryembodiments. However, it should be appreciated that any particularprogram nomenclature herein is used merely for convenience, and thus theexemplary embodiments should not be limited to use solely in anyspecific application identified and/or implied by such nomenclature.

Based on the foregoing, a computer system, method, and computer programproduct have been disclosed. However, numerous modifications andsubstitutions can be made without deviating from the scope of theexemplary embodiments. Therefore, the exemplary embodiments have beendisclosed by way of example and not limitation.

It is to be understood that although this disclosure includes a detaileddescription on cloud computing, implementation of the teachings recitedherein are not limited to a cloud computing environment. Rather, theexemplary embodiments are capable of being implemented in conjunctionwith any other type of computing environment now known or laterdeveloped.

Cloud computing is a model of service delivery for enabling convenient,on-demand network access to a shared pool of configurable computingresources (e.g., networks, network bandwidth, servers, processing,memory, storage, applications, virtual machines, and services) that canbe rapidly provisioned and released with minimal management effort orinteraction with a provider of the service. This cloud model may includeat least five characteristics, at least three service models, and atleast four deployment models.

Characteristics are as follows:

On-demand self-service: a cloud consumer can unilaterally provisioncomputing capabilities, such as server time and network storage, asneeded automatically without requiring human interaction with theservice's provider.

Broad network access: capabilities are available over a network andaccessed through standard mechanisms that promote use by heterogeneousthin or thick client platforms (e.g., mobile phones, laptops, and PDAs).

Resource pooling: the provider's computing resources are pooled to servemultiple consumers using a multi-tenant model, with different physicaland virtual resources dynamically assigned and reassigned according todemand. There is a sense of location independence in that the consumergenerally has no control or knowledge over the exact location of theprovided resources but may be able to specify location at a higher levelof abstraction (e.g., country, state, or data center).

Rapid elasticity: capabilities can be rapidly and elasticallyprovisioned, in some cases automatically, to quickly scale out andrapidly released to quickly scale in. To the consumer, the capabilitiesavailable for provisioning often appear to be unlimited and can bepurchased in any quantity at any time.

Measured service: cloud systems automatically control and optimizeresource use by leveraging a metering capability at some level ofabstraction appropriate to the type of service (e.g., storage,processing, bandwidth, and active user accounts). Resource usage can bemonitored, controlled, and reported, providing transparency for both theprovider and consumer of the utilized service.

Service Models are as follows:

Software as a Service (SaaS): the capability provided to the consumer isto use the provider's applications running on a cloud infrastructure.The applications are accessible from various client devices through athin client interface such as a web browser (e.g., web-based e-mail).The consumer does not manage or control the underlying cloudinfrastructure including network, servers, operating systems, storage,or even individual application capabilities, with the possible exceptionof limited user-specific application configuration settings.

Platform as a Service (PaaS): the capability provided to the consumer isto deploy onto the cloud infrastructure consumer-created or acquiredapplications created using programming languages and tools supported bythe provider. The consumer does not manage or control the underlyingcloud infrastructure including networks, servers, operating systems, orstorage, but has control over the deployed applications and possiblyapplication hosting environment configurations.

Infrastructure as a Service (IaaS): the capability provided to theconsumer is to provision processing, storage, networks, and otherfundamental computing resources where the consumer is able to deploy andrun arbitrary software, which can include operating systems andapplications. The consumer does not manage or control the underlyingcloud infrastructure but has control over operating systems, storage,deployed applications, and possibly limited control of select networkingcomponents (e.g., host firewalls).

Deployment Models are as follows:

Private cloud: the cloud infrastructure is operated solely for anorganization. It may be managed by the organization or a third party andmay exist on-premises or off-premises.

Community cloud: the cloud infrastructure is shared by severalorganizations and supports a specific community that has shared concerns(e.g., mission, security requirements, policy, and complianceconsiderations). It may be managed by the organizations or a third partyand may exist on-premises or off-premises.

Public cloud: the cloud infrastructure is made available to the generalpublic or a large industry group and is owned by an organization sellingcloud services.

Hybrid cloud: the cloud infrastructure is a composition of two or moreclouds (private, community, or public) that remain unique entities butare bound together by standardized or proprietary technology thatenables data and application portability (e.g., cloud bursting forload-balancing between clouds).

A cloud computing environment is service oriented with a focus onstatelessness, low coupling, modularity, and semantic interoperability.At the heart of cloud computing is an infrastructure that includes anetwork of interconnected nodes.

Referring now to FIG. 4 , illustrative cloud computing environment 50 isdepicted. As shown, cloud computing environment 50 includes one or morecloud computing nodes 40 with which local computing devices used bycloud consumers, such as, for example, personal digital assistant (PDA)or cellular telephone 54A, desktop computer 54B, laptop computer 54C,and/or automobile computer system 54N may communicate. Nodes 40 maycommunicate with one another. They may be grouped (not shown) physicallyor virtually, in one or more networks, such as Private, Community,Public, or Hybrid clouds as described hereinabove, or a combinationthereof. This allows cloud computing environment 50 to offerinfrastructure, platforms and/or software as services for which a cloudconsumer does not need to maintain resources on a local computingdevice. It is understood that the types of computing devices 54A-N shownin FIG. 6 are intended to be illustrative only and that computing nodes40 and cloud computing environment 50 can communicate with any type ofcomputerized device over any type of network and/or network addressableconnection (e.g., using a web browser).

Referring now to FIG. 5 , a set of functional abstraction layersprovided by cloud computing environment 50 (FIG. 4 ) is shown. It shouldbe understood in advance that the components, layers, and functionsshown in FIG. 5 are intended to be illustrative only and the exemplaryembodiments are not limited thereto. As depicted, the following layersand corresponding functions are provided:

Hardware and software layer 60 includes hardware and softwarecomponents. Examples of hardware components include: mainframes 61; RISC(Reduced Instruction Set Computer) architecture based servers 62;servers 63; blade servers 64; storage devices 65; and networks andnetworking components 66. In some embodiments, software componentsinclude network application server software 67 and database software 68.

Virtualization layer 70 provides an abstraction layer from which thefollowing examples of virtual entities may be provided: virtual servers71; virtual storage 72; virtual networks 73, including virtual privatenetworks; virtual applications and operating systems 74; and virtualclients 75.

In one example, management layer 80 may provide the functions describedbelow. Resource provisioning 81 provides dynamic procurement ofcomputing resources and other resources that are utilized to performtasks within the cloud computing environment. Metering and Pricing 82provide cost tracking as resources are utilized within the cloudcomputing environment, and billing or invoicing for consumption of theseresources. In one example, these resources may include applicationsoftware licenses. Security provides identity verification for cloudconsumers and tasks, as well as protection for data and other resources.User portal 83 provides access to the cloud computing environment forconsumers and system administrators. Service level management 84provides cloud computing resource allocation and management such thatrequired service levels are met. Service Level Agreement (SLA) planningand fulfillment 85 provide pre-arrangement for, and procurement of,cloud computing resources for which a future requirement is anticipatedin accordance with an SLA.

Workloads layer 90 provides examples of functionality for which thecloud computing environment may be utilized. Examples of workloads andfunctions which may be provided from this layer include: mapping andnavigation 91; software development and lifecycle management 92; virtualclassroom education delivery 93; data analytics processing 94;transaction processing 95; and assessment processing 96.

The exemplary embodiments may be a system, a method, and/or a computerprogram product at any possible technical detail level of integration.The computer program product may include a computer readable storagemedium (or media) having computer readable program instructions thereonfor causing a processor to carry out aspects of the present invention.

The computer readable storage medium can be a tangible device that canretain and store instructions for use by an instruction executiondevice. The computer readable storage medium may be, for example, but isnot limited to, an electronic storage device, a magnetic storage device,an optical storage device, an electromagnetic storage device, asemiconductor storage device, or any suitable combination of theforegoing. A non-exhaustive list of more specific examples of thecomputer readable storage medium includes the following: a portablecomputer diskette, a hard disk, a random access memory (RAM), aread-only memory (ROM), an erasable programmable read-only memory (EPROMor Flash memory), a static random access memory (SRAM), a portablecompact disc read-only memory (CD-ROM), a digital versatile disk (DVD),a memory stick, a floppy disk, a mechanically encoded device such aspunch-cards or raised structures in a groove having instructionsrecorded thereon, and any suitable combination of the foregoing. Acomputer readable storage medium, as used herein, is not to be construedas being transitory signals per se, such as radio waves or other freelypropagating electromagnetic waves, electromagnetic waves propagatingthrough a waveguide or other transmission media (e.g., light pulsespassing through a fiber-optic cable), or electrical signals transmittedthrough a wire.

Computer readable program instructions described herein can bedownloaded to respective computing/processing devices from a computerreadable storage medium or to an external computer or external storagedevice via a network, for example, the Internet, a local area network, awide area network and/or a wireless network. The network may comprisecopper transmission cables, optical transmission fibers, wirelesstransmission, routers, firewalls, switches, gateway computers and/oredge servers. A network adapter card or network interface in eachcomputing/processing device receives computer readable programinstructions from the network and forwards the computer readable programinstructions for storage in a computer readable storage medium withinthe respective computing/processing device.

Computer readable program instructions for carrying out operations ofthe present invention may be assembler instructions,instruction-set-architecture (ISA) instructions, machine instructions,machine dependent instructions, microcode, firmware instructions,state-setting data, configuration data for integrated circuitry, oreither source code or object code written in any combination of one ormore programming languages, including an object oriented programminglanguage such as Smalltalk, C++, or the like, and procedural programminglanguages, such as the “C” programming language or similar programminglanguages. The computer readable program instructions may executeentirely on the user's computer, partly on the user's computer, as astand-alone software package, partly on the user's computer and partlyon a remote computer or entirely on the remote computer or server. Inthe latter scenario, the remote computer may be connected to the user'scomputer through any type of network, including a local area network(LAN) or a wide area network (WAN), or the connection may be made to anexternal computer (for example, through the Internet using an InternetService Provider). In some embodiments, electronic circuitry including,for example, programmable logic circuitry, field-programmable gatearrays (FPGA), or programmable logic arrays (PLA) may execute thecomputer readable program instructions by utilizing state information ofthe computer readable program instructions to personalize the electroniccircuitry, in order to perform aspects of the present invention.

Aspects of the present invention are described herein with reference toflowchart illustrations and/or block diagrams of methods, apparatus(systems), and computer program products according to embodiments of theinvention. It will be understood that each block of the flowchartillustrations and/or block diagrams, and combinations of blocks in theflowchart illustrations and/or block diagrams, can be implemented bycomputer readable program instructions.

These computer readable program instructions may be provided to aprocessor of a computer, or other programmable data processing apparatusto produce a machine, such that the instructions, which execute via theprocessor of the computer or other programmable data processingapparatus, create means for implementing the functions/acts specified inthe flowchart and/or block diagram block or blocks. These computerreadable program instructions may also be stored in a computer readablestorage medium that can direct a computer, a programmable dataprocessing apparatus, and/or other devices to function in a particularmanner, such that the computer readable storage medium havinginstructions stored therein comprises an article of manufactureincluding instructions which implement aspects of the function/actspecified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto acomputer, other programmable data processing apparatus, or other deviceto cause a series of operational steps to be performed on the computer,other programmable apparatus or other device to produce a computerimplemented process, such that the instructions which execute on thecomputer, other programmable apparatus, or other device implement thefunctions/acts specified in the flowchart and/or block diagram block orblocks.

The flowchart and block diagrams in the Figures illustrate thearchitecture, functionality, and operation of possible implementationsof systems, methods, and computer program products according to variousembodiments of the present invention. In this regard, each block in theflowchart or block diagrams may represent a module, segment, or portionof instructions, which comprises one or more executable instructions forimplementing the specified logical function(s). In some alternativeimplementations, the functions noted in the blocks may occur out of theorder noted in the Figures. For example, two blocks shown in successionmay, in fact, be accomplished as one step, executed concurrently,substantially concurrently, in a partially or wholly temporallyoverlapping manner, or the blocks may sometimes be executed in thereverse order, depending upon the functionality involved. It will alsobe noted that each block of the block diagrams and/or flowchartillustration, and combinations of blocks in the block diagrams and/orflowchart illustration, can be implemented by special purposehardware-based systems that perform the specified functions or acts orcarry out combinations of special purpose hardware and computerinstructions.

The invention claimed is:
 1. A computer-implemented method forgenerating and rating assessments, the method comprising: generating aknowledge base based on extracting one or more concepts from datarelating to a subject area; generating one or more questions and one ormore corresponding answer keys relating to the one or more concepts,wherein data used to generate the one or more questions and the one ormore corresponding answer keys is parsed from the generated knowledgebase using a phase structure grammar parser, and wherein the one or morequestions are formed using template matching; and generating anassessment related to the one or more concepts based on the one or morequestions and the one or more corresponding answer keys.
 2. The methodof claim 1, further comprising: determining a complexity of the one ormore questions; associating the one or more questions with a conceptexpertise level based on the determined complexity; and whereingenerating an assessment related to the one or more concepts is furtherbased on the concept expertise level associated with the one or morequestions.
 3. The method of claim 2, further comprising: determining anexpertise of a user; and providing the generated assessment to the userbased on the expertise of the user and the concept expertise level ofthe generated assessment.
 4. The method of claim 3, further comprising:receiving one or more answers to the one or more questions from theuser; and assessing the user based on comparing the one or more receivedanswers to the one or more corresponding answer keys.
 5. The method ofclaim 4, further comprising: adjusting the assessment based on feedback.6. The method of claim 5, wherein the feedback is generated viasupervisory validation.
 7. The method of claim 1, wherein the knowledgebase is periodically updated.
 8. A computer program product forgenerating and rating assessments, the computer program productcomprising: one or more non-transitory computer-readable storage mediaand program instructions stored on the one or more non-transitorycomputer-readable storage media capable of performing a method, themethod comprising: generating a knowledge base based on extracting oneor more concepts from data relating to a subject area; generating one ormore questions and one or more corresponding answer keys relating to theone or more concepts, wherein data used to generate the one or morequestions and the one or more corresponding answer keys is parsed fromthe generated knowledge base using a phase structure grammar parser, andwherein the one or more questions are formed using template matching;and generating an assessment related to the one or more concepts basedon the one or more questions and the one or more corresponding answerkeys.
 9. The computer program product of claim 8, further comprising:determining a complexity of the one or more questions; associating theone or more questions with a concept expertise level based on thedetermined complexity; and wherein generating an assessment related tothe one or more concepts is further based on the concept expertise levelassociated with the one or more questions.
 10. The computer programproduct of claim 9, further comprising: determining an expertise of auser; and providing the generated assessment to the user based on theexpertise of the user and the concept expertise level of the generatedassessment.
 11. The computer program product of claim 10, furthercomprising: receiving one or more answers to the one or more questionsfrom the user; and assessing the user based on comparing the one or morereceived answers to the one or more corresponding answer keys.
 12. Thecomputer program product of claim 11, further comprising: adjusting theassessment based on feedback.
 13. The computer program product of claim12, wherein the feedback is generated via supervisory validation. 14.The computer program product of claim 8, wherein the knowledge base isperiodically updated.
 15. A computer system for generating and ratingassessments, the computer system comprising: one or more computerprocessors, one or more computer-readable storage media, and programinstructions stored on one or more of the computer-readable storagemedia for execution by at least one of the one or more processorscapable of performing a method, the method comprising: generating aknowledge base based on extracting one or more concepts from datarelating to a subject area; generating one or more questions and one ormore corresponding answer keys relating to the one or more concepts,wherein data used to generate the one or more questions and the one ormore corresponding answer keys is parsed from the generated knowledgebase using a phase structure grammar parser, and wherein the one or morequestions are formed using template matching; and generating anassessment related to the one or more concepts based on the one or morequestions and the one or more corresponding answer keys.
 16. Thecomputer system of claim 15, further comprising: determining acomplexity of the one or more questions; associating the one or morequestions with a concept expertise level based on the determinedcomplexity; and wherein generating an assessment related to the one ormore concepts is further based on the concept expertise level associatedwith the one or more questions.
 17. The computer system of claim 16,further comprising: determining an expertise of a user; and providingthe generated assessment to the user based on the expertise of the userand the concept expertise level of the generated assessment.
 18. Thecomputer system of claim 17, further comprising: receiving one or moreanswers to the one or more questions from the user; and assessing theuser based on comparing the one or more received answers to the one ormore corresponding answer keys.
 19. The computer system of claim 18,further comprising: adjusting the assessment based on feedback.
 20. Thecomputer system of claim 19, wherein the feedback is generated viasupervisory validation.